Hollow-concrete-wall mold.



F. H. PACKARD.` HOLLOW CONCRETE WALL MOLD.

` PrLIoATIoH FILED JULY 1 o, 1911.

Patented June 25, 1912.

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F. H. PACKARD; HOLLOW GONORETE'WALL MOLD.

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u. .I VT4 mm, f M s 0V uw 1 Z w M M W M i w atl'oxuecdo P. H. PACKARD. HoLLow-coNcRE'TB WALL MOLD.

APPLICATION FILED JULY l0, 1911.

Patented June 25,A 1912.

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Gnoufs-np v1'. E. PACKARD. HOLLOW OONORLTB WALL MOLD. APPLICATION FILED JULY 1 0, 1911.M

Patented June 25, 1912.

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F. H. PACKARD.

HOLLOW CONCRETE WALL MOLD. APPLIOATIoN FILED JULY 1o, 1'911.

1,030,480. Patented 'June 25, 1912. l 5 SHEETSSHBET 5. I

lu-Wenko@ Wmme@ y FRANK H. PACKARD, or cErLoN, MINNESOTA..

HOLLOW-CONCETE-WAL MOLD.

Specification of Letters Patent.

Patented June 25, 1912.

Application filed July 10, 1911. Serial No.`637,806.

To lall whom -z't may concern:

Be it known that I, FRANK H. PACKARD,

a citizen of the United States, residin at.

Ceylon, in the county of Martin and tate of Minnesota, have invented certain new and useful Improvements in Hollow-Concrete Wall Molds; and l do declare the following' to be afull; clear, and exact description of the invention, such as .willenable others skilled in the art to which it appert-ains to make and-useA t-he same.

This invention relates to improvements in molds for forming hollow concrete walls.

The object .of the invention is to generally improve the construction of such devices.v Y'

With this object in view, the invention consists of certain novel features of con struction, combination and arrangement of parts as will be more fully described and claimed. v

In the' accompanying drawings: Figure 1 is a front or outer side View of my improved -mold; Fig. 2 is an inner side view of a part thereof; Fig. 3 is a vertical cross sectional view on the line 3-3 lof Fig. 1; Fig. 4 is a` vertical longitudinal section on the line 4 4 of Fig. 3; Fig. y5 is a horizontalmsectional view on the line 5--5 of Fig. 1; Fig.

-6 is a similar view on the line 6 6 of Fig. Y4; Fig. 7 is a detail fragmentary sectional view through the upper ends of the mold plates for vforming the deadair space in the wall on the line 7-7 of Fig. 4 showing one means for closing said space while the wall isd being formed; Fig. 8 lis a detail outer sideview of one form of mold for formingr the outer surface of the wall; Fig. 9 is a similar view of the inner'or .working side ofthe mold shown inFig. 8; Fig. 10 is a vertical sectional 'view of the same Von the line 10-10 of Fig. 8.; Fig. 11 is a view simllar to Fig. 8 showing a modified construe#I tion of the outer mold; Fig. 12 is a vertical sectional view on the line 1212 of 11; Fig. 13 is a horizontal sectional view on the line 13-13 of Fig. 11; 14 is a detail sectional view through a portion'of the wall and molds showing the arrangement of the separat-in ,plates whereby Vthe outer surface of the walls may be formed of different material from the main'or inner portion of the wall; Fig. 15 is a detail perspective view of a portion of 4two of the separating plates shown in Fig. 14 and illustrating the interlocking connection between the adjoining tional View through a portion of the wall showing the manner in which the door and window frames are arranged therein and the concrete formed around the outer edges of the frames; Fig. 17 is a detail sectional View edges of said plates; Fig. 13 is a detail secthrough a portion of the wall and mold Vplates' for forming the dead vair space of the wall showing a modified meansfor closing said space while the walls are bein formed.

In the embodiment of the invention l pro` vide lower supporting sills or base bars 1 -whichrnay be formed of any suitable material and which` are here lshown and are preferably of angle iron construction. The

sills or. bars l are secured together by bolts 2 on which are arranged sleeves 3 whereby said sills or bars are spaced apart to the proper distance for forming walls of the desired thickness. Secured to the bars or sills lare a series of vertically disposed channel iron uprights 4 4 a'ny desired number of which may be employed, said bars being spaced at suitable distances apart for holdmg the mold sections in place and for supporting the lift-ing and counterbalancing mechanism for the molds as hereinafter described. The uprights 4 are connected at their lower ends to the bars or sills 1 by angle iron cornerbrackets 5 and are connected. at their upper ends by similar brackets 5 to upper cross bars 6. ln the inner sides of the channel iron uprights 4 are formed series ojf-apertures 7 with which are adapted to be engaged the ends of upper tie and mold vsupporting bolts 8 on which are arranged spacing sleeves 9 whereby the upper portion of `the uprights are firmly held in position. Also bolted or otherwise firmly secured at its lower end to the inner` sill or base bar 1" is an inner angle iron corner upright 10 which is connected at its upper end to one of the cross bars 6 and also to the inner end of a cross' bar 6 the outer end of which is connected to the upper' end of the'irst upright 4 of the end wall of the structure. The corner upright 10 isI -bars 6 and 6 of the side and end wall uprights have secured 'thereto connecting 'plates inafter described.

11 which also serve as supporting means for a mold counter-balancing mechanlsmher'e- Y Supported and held in position by the vuprights 4 and 4 are aseries of outer wall molds 12 and inner wall molds'13. The molds 12 andl 13 -are preferably constucted of a series of sections' of suitable size and shape. The outer wall mold sections comprise sheet metal plates. 14.wl1ich are secured at their edges to a supporting frame '15 which in the preferred construction here- Y in shown is formed of wooden strips and has arranged therethrough centrally disposed brace bars 16. One end of the frame of each mold section at the outer corners of the wall is arranged at an angle of forty-five degrees so that when the mold sections for forming the corners of the Wall are' brought together they will be disposed at right angles to each other and may be secured" together by bolts 17 or other suitable fastenin devices. sheet metal plates of the mol sections 12 are creased or provided with properly arranged longitudinal and transversely disposed nar-- row grooves between which the metal is in.- dented in an irregular manner. By forming the grooves and indentations in the sheet metal plates of the outer mold sections the outer surfaces of the wall formed by said mold sections will present' the appearance of being built of roughly finished stone.

and 13. In these figures it will be seen that 'As hereinbefore stated the sheet Vmetal plates are' secured to frames 15 constructed of wooden strips. If desired, however, I may construct the frames of the sections from metalbarsas shown in Figs. 11, 12

the frame comprises a series of angle iron cross bars 18 which are riveted to the met-al sheets of the molds. To the vertical edges of the sheets are secured channel iron: connecting brackets 19 the outer port-ions of whlch are secured together by a vertically.

disposed brace bar 20. In the outer engaging parts of the brackets 20 are formed bolt holes through which are inserted section attaching bolts 21 whereby the mold sections are connectedl together to form the sideof the wall.

The sections of the inner mold 13 forforming the outer surfaces of the inner sec.'

tion of the wall are preferably in the form of fiat sheet metal plates having .on .their engaging edges interlocking fingers 13a and having secured to .their outer sides angle iron brace-bars 13b which impart the neces'- -sary rigidity to the plates for resisting the pressure of the material when; tam 'ed to orm the wall. On the edge of the en mold sections where the same join the-sectionslofthe molds for forming the corners of the wall are secured connecting". bars 22 which lare ,bent at the proper angle for forming ther corner, said bars 22 of the corner mold sec- The l: pin lifting cables 37. The cables '37 pass tions being. secured. together by bolts or other suitable fastening devices. On the upper edge of the mold sections preferably adjacent to one end thereof are formed upwhi'ch adjacent to the upper edges ofthe mold sections are formed passages 24 with which are engaged the ends of the tie bolts 8 and Swhereby said mold sections are supported at the proper elevation andare se- 'curely connected to the upri hts 4,?'and 4.. 'In the lugs 23 are also forme apertures 25 with which are connected the lower ends of raisingA and counter-balancingl cables 26 'wardly extending 'supporting lugs 23 in 70v Which pass upwardly through suitable apertures in the cross bars 6 and 6 and from thence pass over grooved guiding and supporting #pulleys 27 which are revolubly mounted in suitable bearing brackets 28 se?l cured to the outer ends of 'the cross bars 6'\, 85

and 6. To the outer ends of the cables V26 are secured counter-balanc' weights 29 which are ada ted to assist 1n raising themold sections or forming the additions to the walls and for holding saidymold sections '9o in place until they tie bolts 8 and 8"' have been engaged therewith and saidv sections thus secured to .the uprights.

Ashereinbefore stated thejwall is of hollow construction or vformed in inner and outer sections separated a\suitable distance apart to form between the inner surfaces' In order to form the The upper the space between the plates, while the walls' 110 are being formed. Instead of forming Aoverlapping anges. 32 on the upper edges of the plates 30, I may, if desired, provide suitable channel iron caps 33 which are adapted to be engaged with the upper 'edges 115 of the plates and thus close the .space bey tween the same. In order to space the plates A30 a suitable distance apart for forming the dead air space and to hold the same vin this position while the walls are being formed, I provide spacing pins or rods 34 which'are inserted through lsuitable apertures formed in the nages32vor caps l33 on the upper edges of the plates andV extendl down' between the latter thus holding the same in spacedrelation. On the upper ends of the pins or rodsf34 are formed eyes or hooks 35 with which are engaged pin lifting bars 36 to .which are connected the'inner ends of upwardly through suitable apertures in the connecting plates 11 and are engaged with' guide pulleys 38 revolubly mounted in suitable supporting'brackets 39 secured'tov said r connecting plates 11 as shown.

The outer ends of the cables 37.are .connected to counter-balancing weights 40 which assist in raising the pins 34iand in holding the same in an elevated position.

* By providing the lifting bars 36 the pins `plates 30 and in supporting the same in.

position. VThe plates 30 are spaced from the outer and inner mold sections 12 and 13 by'spacing members 45 which are secured at their inner ends to the plates and'have their outer ends engaged with the inner sides lof the and outer mold sections 12-and 131as shown'.

30 Secured to the channel iron uprights 4 .l and 4 are right angular outwardly projecting brackets 46' to which are secured longitudinally disposed upright shifting bars 47 by means of which the uprights may be swung sidewise or tilted thus permittingr the mold sections to be raised or adjusted for forming the successive layers or addi.- tions to the walls. As the innerand outer sections of thewall are being formed in 4 9 the manner described, reinforcing rods 48 'fand/tie rods 49 may be embedded in the cement thus reinforcing and tying the sections of the wall together as the same is constructed. v

' 45 In order to permit la different of material to be employed for forming the outer .surfaces of either of the sections of the wall,- I provide separating plates 50 having on their engaging edges interlock?,-

50 ing' fingers 51, said Yplates being adapted to be placed in position a suitable distance from the mold sections 12 and 13. When thus arranged the material-for forming the main body of the wall is placed lbetween l ,L said plates and the dead airspace mold plates 30, while the finer or harder material is placed between said platesand the outer and inner mold sections 12 and 1 3. After the material has thus been placed in between j the plates, the separating plates are removed inany suitablemanner and the material then tamped.- The separating plates i l50 are preferably provided ontheir upper edges with apertured lugs 52 to which may be connected raising cables (not shown) but also constructed of wood. The molds may which would be arranged in a similar manner as 'described in connection with. theY raisin 'cables for 'the mold sections and woul be 'providedwith similar counterbalancing weights. 70

As vthe walls are built up in the manner described and the levels ofthe successive floors of the building reached, the floor joists 53 have their ends engaged with and embedded in the inner section of the wall -asl shown. -Also embedded at the desired .locations in the wall/s are door and window frames 54, said frames being of less width 'than the combined .thickness of the inner and outer wall sections'so 'that the outer 80 edges of the frames terminate some distance in from'the outer surface of the wall and are thus protected by the projecting parts of the wall forming the inner surface of the opening in which the'frame is set. In order to provide a smooth even surface for the projecting part of the wall around the outer edge of the window or 'door frame and to make the surface of said projecting surface of the wall Hush with said inner sides of the-frame, I provide temporary mold boards 55 which are tacked to the inner surface of the frame and project beyond the outer edge thereof to the outer surface of the wall and thus permit the cement to be filled in' around 95 and over the outer edge of the edges of the frame as shown. 4The part of the wall when thus formed over the cuter edge of the window or doorframe closes anv space or crack which may occur between the windowl or door frame and the adjacent part of the wall,.thus prevent-ing the ent-rance of wind or water between the frame and adjacent parts of the wall. After the cement has set around the frame the mold boards removed thus leaving thesurface of the projecting part of the'wall smoothv and ,flush with the inner sides of the frame. When it is desired to build a wall higher than the uprights 4, extra 'uprights may be placed on and secured to the upperV ends of the first series of uprights or the entire apparatus may be raised and suitablyfastened to `the finished part of the wall and the latter thus built. onto or increased in length. My improved molding apparatus while Ahere shown and described as being formed of metal may' for the most part if desired be be formed to produce an imitation of brick, stone or wood siding or to .produce any other effect or appearance. The molds may also be constructed if desired of common steel siding and the molds are preferably about one-half inch wider than each layer'125 ofconcrete. The tie rods are yarranged by laying the same straight or diagonally across the top of each layer of concrete and with the projecting inner ends of the tie rods are engaged the inner or deadair space 13o mold plates. By means of my.improved ymolding apparatus a continuous dead air r principle or sacrificing. any of the advantages ofthe invention claimed.

Having thus described my invention, what I claim is:

1. In a hollow wall mold, .a series of sills spaced apart and secured together in proper position to form the base members of the mold, a plurality of uprights secured at their lower ends to said sills and adapted to form supports for the vsections of the mold, cross bars connected to the upper ends of said uprights whereby said upper ends are spaced apart and secured together, ,connect ing plates secured to said cross bars, a series of mold supporting tie bars vsecured at their outer ends to said uprights, spacing sleeves arranged on said rods, a'series of inner and outer mold sections adapted to be. secured together v at their engaging edges, supporting lugs selcured to said sections and adapted to receive the ends of said tie rods wherebyv said sec'- tions are secured to and supported by said uprights, dead air space molds arranged between said mold sections whereby the wall is divided into inner and outer sections-and a dead air space formed between said sections, means to support said dead air space molds, and counter balancing weights secured to said inner ,and outer mold 'sections-whereby thesame are vraised and held in position while being adjusted to form the successive layers of the wall.

2. In a hollow concrete wall'mold, inner and outer series of suitably supported u rights, a series of -outer mold sections agjustablyv secured to said uprights, a series of l v inner mold sections, said sections comprising flat metal plates having secured thereto a' series of f brace bars, lnterlocking lingers' formed on the engaging edges of said plates whereby the latter are connected together to form an unbroken surface, means to adjust-1' abl secure said mold sections to the inner series of uprightsVand shifting bars secured to said uprights whereby the latter when released may be shifted to permitthe moldv sections to be adjusted for forming the successive layers of the wall.

3. A hollow concrete wall mold comprising inner and outer series of suitably supported uprights, a series of outer mold sections, `a

air space in the wall, means to close the space between the upper edges of said plates whereby the material is prevented from entering said space, spacing pins adapted to be engaged .between said' plates whereby the latter are spaced apart, lifting, lugssecured l to said plates, spacing members :secured thereto and adapted to engage said inner and outer mold sections, raising cables connected to the-lugs on said mold plates, guidving andl sup lortingpulleys adapted to'- receive said ca les, counter balancing wei hts. secured to the outer ends ofthe ca les whereby the mold lates are held in position, and liftin .and cables connecte to the spacing pins between said mold plates.

. Intestimony whereof I have hereunto s et my hand in 'presence of two subscribing w1tnesses.

. 4FRANK H. PACKARD.

Witnesses:

G. A. PUGSLEY, SIMON L. Do'rsoN.

vsupporting plates and 

